Iam a new boater and bought a 2011 185 sport 190 hp. If I don't use the boat for a couple days should I push that button on the shifter [to make the engine rev] and give it two pumps toward the forward position before starting the boat. Or is this totally unnecessary and I should just turn the key? I read that you do this procedure when it's colder out, can someone elaborate on this? Thanks in advance.